add reference to Locations in Methods

Author: MahdiIsComing

database/migrations/create_shipping_table.php

@@ -19,6 +19,8 @@ public function up()
             $table->id();
             $table->unsignedBigInteger('zone_id');
             $table->foreign('zone_id')->references('id')->on('shipping_zones_table');
+            $table->unsignedBigInteger('location_id');
+            $table->foreign('location_id')->references('id')->on('shipping_zone_locations_table');
             $table->string('method_name');
             $table->string('method_type');
             $table->bigInteger('method_value');